Python cmd module command aliases

The cmd module in Python provides a simple framework for building line-oriented command interpreters. In this tutorial, we'll explore how to use the cmd module to create command aliases, allowing users to use shorter or more convenient names for commands in a custom command-line interface.
The cmd module is part of the Python standard library and allows you to create interactive command-line interfaces. It provides a base class, Cmd, that you can subclass to build your own command interpreters.
Let's start by creating a basic command interpreter using the cmd module. We'll then extend it to include command aliases.
Now, let's enhance our command interpreter by adding support for command aliases. We'll use the alias dictionary to define aliases for existing commands.
In this example, we've added an aliases dictionary to map alias names to their corresponding commands. The precmd method is overridden to check if the entered command is an alias. If it is, the alias is replaced with the actual command before execution.
Save this updated code and run it. Now you can use aliases such as greet instead of hello and exit instead of quit.
This tutorial introduced you to the basics of the cmd module and demonstrated how to create a simple command interpreter with command aliases. You can further extend this example to add more commands and customize the behavior of your command-line interface.
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